Track for track-laying vehicles



Sept. 13, 1938. H. A. KNOX ,TRACK FQR TRACK LAYING VEHICLES Filed Jun 12, 1935 Invenuir Harry A1411 D'X AH urns Patented Sept. 13, 1938 2,129,696 TRACK son TRACK-LAYING VEHICLES Harry A. Knox, Washington, D. 0. Application June 12, 1935, Serial N0. 26,194 2 Claims. (01. 305-10) (Granted under the act of March amended April 30, 1928; 370 O.

The invention described herein may be manufactured and used by or governmental purposes,

for the Government for, without the payment to me of any royalty theeron.

This invention relates to a laying vehicles.

track for trackinvention is to provide a track of the rubber shoe type in which the track tension is transmitted A further object is to facilitate construction of the track shoe by providing through rigid elements.

a rigid insert for a rubber shoe which includes and correctly spaces bearings or sleeves for the link pins.

To these and other ends, the invention consists in the construction, arrangement and combination of elements de pointed out in the claims forming a specification.

A practical hereinafter and part of this scribed embodiment of the invention is illustrated in the accompanying drawing, where- Fig. 1 is a plan view flight of a track constructed in accordance with the invention.

Fig. 2 is a view in side Fig. 3 is a Fig. 4 is a view in link pins in section.

plan view side elevation of a shoe,

of a portion of the lower elevation. of the rigid insert.

the

Fig. 5 is a plan view partly in section of a double-row track.

Fig. 6 is a sectional view of a modified insert employed in the track of Fig. 5.

' Referring to Figs. 1

to 4, the track comprises a row of shoes A connected in spaced relation by rigid links B mounted on link pins 0 extending transversely through opposite ends of the shoes. The shoes A are all identical and each consists of a block of rubber or similar material having a rigid insert or frame D, preferably of metal.

The frame comprises a 55 bearings or sleeves pair of spaced, parallel connected at their ends the shoe, covers all faces of the'side webs of the frame except the outer 6-6. Each of the. sleeves 5 carries a rubber bushing 8 whose outer surface is fixed to the sleeve an fixed to the link pin C.

d whose inner surface is place by the bolt 2. A track for able'with respect to the pins.

3, 1883, as G. 757) The links B are all identical and each one ismounted onadjoining link pins of adjacent shoes. The link includes a-flange 9 having turned ends ill-l0 adapted to hook over the link pins. A

bolt insertable between the link pins has a wedge- 5 shaped head H receivable in grooves l2 in the link pins. 1 The shank I3 of the bolt passes through the flange 9 and receives a nut M. This connection holds the link. in place and locks the associated link pins against independent rotational movement. v By virtue ofthis construction the track tension is taken by the metal parts except for the small amount of rubber in the bushing 8. The frame D also maintains the shoe against bending and 15 greatly facilitates construction of the shoe in that the hearings or sleeves 5-5 are held by the webs in correctly spaced position.

In the modification shown in Figs. 5 and 6 theframe I5 is provided only with side webs I6. This 20 arrangement is used when the shoes are relatively narrow and are to be used in a double-row track. The links H are formed to hook over adjoining link pins ill of adjacent shoes and are held in IS in the manner previously de- 25 scribed. The link pins l8 are each fixed-in a rubber bushing 20.

I claim: a

' 1'. A track for track-laying vehicles embodying a series of spaced shoes; each shoe consisting of 3 a rigid rectangular frame of spaced sleeves connected at their ends by webs, a block of rubber vulcanized around the frame; and a rubber bushing fixed in each sleeve; 2. link pin passing through and fixed in each bushing, and a rigid 35 f detachable link connecting adjoining pins of adjacent shoes, spaced from the shoes and immovable angularly and longitudinally with respect to the pins.

track-laying vehicles embodying 40 a series of spaced shoes; each shoe consisting of a block of rubber-having a rigid rectangular metal frame'insert including spaced sleeves, and a rub-, ber bushing fixed in each sleeve; a link pin passing through and fixed in each bushing, and a rigid 45 detachable link connecting adjoining pins of adjacent shoes, spaced from the frame and immov- HARRY A. KNOX. 

